Automobile headlight



April 8, 1930. c. L. IBIGBEE ET AL AUTOMOBILE HEADLIGHT Filed Oct. 1, 1928 gIVENTORs Carson L. {ghee ATTORNEY l atentecl Apr. 8 1930 UNITED STATES PATENT OFFICE CARSON L. IBIGIBEE, 0] LOS ANGELES, AND JOHN COUCH, OF SAN MATEO, CALIFORNIA AUTOMOBILE HEADLIGHT Application filed October 1, 1928.

This invention relates particularly to light projecting apparatus designed for use as a headlight for automobile, and our object is to devise apparatus which will so control the light projected that the beams will not strike the eyes of the driver of an approaching vehicle, and yet will give ample illumination on the road where it is needed.

We attain our object by means of the con structions hereinafter described and illustrated in the accompanying drawings in which Figure 1 is a front elevation of the device.

Figure 2 is a longitudinal section of the device shown in Figure 1.

In the drawings like reference numerals indicate corresponding parts in the different figures.

The body of the device consists of an ellipsoidal casing or shell 30, truncated as shown in a plane perpendicular to the longitudinal axis of the casing and provided with a flat semi-circular closure 31, on which is appropriately mounted centrally and adjacent the uppermost point thereof a light source 35. Below the closure 31 is mounted a semi-circular window 32, the frame 33 of which is hinged at 37 to the part 31 and held at the bottom by a screw 34.

Within the shell 30 is mounted a series of fiat depending reflectors 36, so positioned and inclined as to direct the light impinging on them to the window 32 in the manner shown. The angle of inclination of the depending reflector adjacent the light source 35 is the greatest and becomes progressively less for each succeeding reflector so that the angle of inclination of the last depending reflector is practically vertical. As shown in Figure 2, each of said depending reflector is inclined in a direction away from said light source.

At the rear of the shell 30 is mounted a reflector 38, which is preferably slightly concave although it also may be flat, and which serves to provide a horizontal beam of light. The reflector 38 is positioned directly opposite the window 32 and inclined in a direction towards said light source 35.

This construction provides for a strong and sharply defined beam straight ahead gradu- Serial No. 309,585.

ally merging into a diffused downward illumination near the vehicle.

What we claim as our invention is:

1. A headlight comprising an elongated casing ellipsoidal in shape and truncated at its forward end in a plane perpendicular to the longitudinal axis of said casing whereby said forward end will be circular in form, a semi-circular fiat closure plate positioned on the forward end of said casing the lower edge lock said window to said casing, a light socket adapted to receive a light bulb fastened centrally to the inner surface of said closure plate adjacent the uppermost point thereof, a plurality of spaced flat reflectors attached to the upper surface of said casing and depending therefrom, and a slightly concave reflector plate attached to the rear of said casing.

2. A headlight comprising an elongated casing ellipsoidal in shape and truncated at its forward endin a plane perpendicular to the longitudinal axis of said casing whereby said forward end will be circular in form, a semicircular flat closure plate positioned on the forward end of said casing the lower edge) thereof coinciding with the horizontal diameter of said forward end, a window similar in form to said closure plate and hinged to the lower edge thereof, screw means adapted to lock said window to said casing, a light socket adapted to receive a light bulb fastened centrally to the inner surface of said closure plate adjacent the uppermost point thereof, a plurality of spaced flat reflectors attached to the upper surface of said casing and depending therefrom, a slightly concave reflector plate attached to the rear of said casing, each of said depending reflectors are positioned Within the casing at an angle to the vertical in a direction away from said light bulb, the angle' of inclination of the reflector nearest the light bulb being greatest and becoming progressively less so that the depending reflector furtherest away from said light bulb is practically vertical, and said concave reflector be l0 tures.

CARSON L. BIGBEE. JOHN COUCH. 

